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3 years ago

When you do a displacement reaction with iron and copper what is the orange metal called

Chemistry

1 answer:

laiz [17]3 years ago

5 0

It is called rust and it forms when water soaks into the metal forming a chemical reaction.

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Create and balance a chemical equation for the following statement.

m_a_m_a [10]

FeCl₂ + 2NH₄OH → Fe(OH)₂ + 2NH₄Cl

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2 years ago

Name two compounds in unpolluted air?

elena-14-01-66 [18.8K]

The two compounds present in unpolluted air are carbon dioxide and water. You may think that carbn dioxide is a greenhouse gas, yes it is and at the same time not. There animals in the earth that produces carbon dioxide into the atmosphere, the carbon dioxide too, is also need for plan respiration.

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2 years ago

Atoms that differ only in the number of neutrons are called:

Natali [406]

The answer is C. Isotopes.

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Hope this helps!

8 0

2 years ago

Read 2 more answers

Calculate the number of atoms in 0.25 moles of manganese?

White raven [17]

<h3>Answer:</h3>

1.5 × 10²³ atoms Mn

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

Using Dimensional Analysis
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<h3>Explanation:</h3>

<u>Step 1: Define</u>

0.25 mol Mn

<u>Step 2: Identify Conversions</u>

Avogadro's Number

<u>Step 3: Convert</u>

Set up: $\displaystyle 0.25 \ mol \ Mn(\frac{6.022 \cdot 10^{23} \ atoms \ Mn}{1 \ mol \ Mn})$
Multiply: $\displaystyle 1.5055 \cdot 10^{23} \ atoms \ Mn$

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 2 sig figs.</em>

1.5055 × 10²³ atoms Mn ≈ 1.5 × 10²³ atoms Mn

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3 years ago

Myra wants to measure the pH of a sample of drinking water as accurately as possible. What method should she use?

Fofino [41]

<span>To find the most accurate result possible, Myra should use a pH meter that has been accurately calibrated to test her sample of drinking water. These meters are used in a wide variety of fields from laboratories that run experiments to companies that require strict quality control standards for their products.</span>

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2 years ago